Tin-pack-handling mechanism for heating furnaces



J. W. PERRY Aug. 12, 1930.

TIN PACK HANDLI G MECHANISM FOR HEATING FURNACES Filed Sept. 8, 1928 6Sheets-Sheet [nwntar ohn If fevvy w J. w. PERRY 1,772,554

TIN PACK HANDLING MECHANISM FOR HEATING FURNACES Filed Sept. 8, 1928 6Sheets-Sheet 2 Irrvmmr s 1 1v M xlttorm \\m\ \b M z7///%////////////////////////////////////////////%wp\ l! aijl- \A era/EnJiffy/v31 M Aug. 12, 1930.

J. W. PERRY Aug. 12, 1930.

TIN PACK HANDLING MECHANISM FOR HEATING FURNACES 6 'Sheets-Sheet 5 FiledSept. 8, 1928 J'a/an 71 7 777 M J. w. PERRY 1,772,554

a Sheets-Sheet w\\\\\\\\\ E\ Xv V J/Z/Z Ki /v31 M Filed Sept. 8, 1928TIN PACK HANDLING MECHANISM FOR HEATING FURNACES,

Aug. 12, 1930.

15v @mmih xittarngy J. W. PERRY Aug. 12, 1930.

TIN PACK HANDLING MECHANISM FOR HEATING FURNACES Filed Sept. 8, 1928 6Sheets-Sheet 5 T A O Q 0 F 0 0 E 0 o O O o w Q O O O w 0 Mi z\\\ i, i wk0 0 0 U M 1+ Patented Aug. 12, 1930 UNITED STATES JOHN w. runny, orwannnme, was]: vmemxa mnr-racx-mnmemncmmsm son n'm'rnve summons 4Application filed septembet s, was. Serial 110.8%,628.

The invention genera'lly has for its object to provide a tin-packheating furnace wherein is-provided -means for conveniently andefficiently handling and conveying the packs into and through theheating chamber in a manner insuring proper thorough heating.

thereof preparatory to final rolling.

In its more detailed nature the invention seeks to provide an improvedconveyor mech- 1o anism forreceivin the tin, black plate, or sheet ironpack as t ey leave the doubler and conveying them through the furnace,automatically handling the packs so as to assure proper thorou h heatingof the same as they pass'through te furnace.

With the above and numerousotherobjects in view as will appear as thedescription pro-' ceeds, theinvention resides in certain novel featuresof construction, and in the-combination and arrangement of parts aswillbe hereinafter more fully described and claimed.

In the drawing: Figure 1 is a die ammatic plan viewof the apparatus emboying the features of my 26 invention showing the furnace in horizontalsection, w

Figure 2 is a longitudinal vertical section through the furnace showingthe output convevor, so igure 3 is a similar'section showing the take inconveyor,

Figure 4 is an enlarged detail vertical transverse section takensubstantially on the line 4-4 of Figure 1 Figure 5 is a similar sectiontaken substantially on the line 55 of Figurel,

' Figure 6 is a detail vertical transverse section taken substantiallyon the line 6-6 of Figure 1,

Figure 7 is a vertical detail transverse section taken substantially onthe line .7-7

of Figure 1, s

Figure 8 is a detail vertical section taken substantially on the line 88of-Figure 1,.

Figure 9 is a detail vertical transverse sectiontaken substantially onthe line 99 of Figure 1,

Figure 10 is a longitudinal vertical detail section taken substantiallyon the line 10-10 of Figure 1,

ed to thedesired temperature by any apw Figure 11 is a fragmentardiagrammatic plan view at the output en of a modified orm of theinvention, I

Figures 12 and 13 are sectional views taken substantially on the lines12-12 and 1313 Us res ectively of Figure 11,

igure 14 is an enlarged detail section showing the flipper operatingmechanism for this modification, and i Figure 15 is a ,detail sectiontaken substantially on the line 15-15 of Figure 1.

Referring to the drawing in detail, in. WlllCh like numerals ofreference indicate like parts in all of thefi'g-ures, 1' indicates thewalls of a heating furnace which may be con- 6 structed in the usualmanner of fire brick, steel beam suppgrted and said walls enclose aheating cham r 2 which is to be kept heatproved heating unit, (notshown).

At one end of the furnace there is provided an intake passage 3alohgsideof which is i an ofl'take passage 4. Capped supports-5 are provided atthe entrance of the intake passage 3 and one of them is provided with anelectric switch button 6 so that when a pack is placed thereon a circuit(not shown) will be closed for lighting an incandescent bulb 8 lbcatedat the rollingiuill 9 so as to signal. I

an operator that .a pack has been placed upon '80 the support 5 so thatsaid operator may start the machiner as will be erei'nafter' moreclearly descri ed. A shaft 10 is suitably supported for rotation outsideof the (passages 3 and 4. This Y shaft 10 is embedde in a platform 11forming a continuation of the bottom12 of the fuanace as is clearlydisclosed in Figures 2 an 3. v a The bottom 12 of the furnace isprovided with a passage 14 continuing a distance into the platform 11having an openinglfi in the furnace and an opening 16in the platform ex-1 teriorly'of the furnace. I

The shaft '10 is journaled in the platformflfi to extend across: theassage 14 below the o n ing- 16., A 'sproc et 17 is mounted on t isshaft 10. A shaft 18 is'ournaled in the bottom 12 at the inner end 0 thepassage 14 and has a sprocket 19the'reon. 7

A chain is trained over the sprockets 17 and 19 and has a plurality ofspaced projections or teeth 21 thereon. This chain extends between thesupports 5 as is clearly illustrated in Figure 1.

The upper run of the chain is disposed on top of the bottom 12 and theplatform 11 while the lower run of the chain is in the passage 14. Theupper run of the chain passes through the intake passage 3.

A door 22 is swingably mounted as at 23 in'the intake passage 3 and willswing partially open as a pack passes by, by the pack engagingtherewith. The distance between the teeth is such as to accommodatepacks therebetween as is clearly illustrated in Figure 3. A shaft 24 isjournaled above the platform and has a gear 25 thereon meshing with agear 26 on the shaft 10, as shown to advantage in Figure 10. i

The gear 25 is loose on the shaft 24 and has a clutch 27 associatedtherewith so that said clutch may be closed to cause the rotation of thegear 25 with the shaft 24. This clutch 27 is conveniently locatedadjacent the incandescent bulb 8 by means of a lever 28, link 29, bellcrank 30, link 31. and lever 32 or in any other preferred or suitablemannet.

The bottom 20f the furnace is provided with another passage 33 similarto passage 14 and in spaced parallelism thereto and this passage isprovided with end openingsv34 and 35. I

A shaft 36 is at one end of the passage 33 and has a sprocket 37thereon; A shaft 38 is at the other end of the passage and has asprocket 39 thereon. The shaft 38 is operatively connected with theshaft 24 by means of chain and sprocket mechanism 40 so that the chain41 trained about the sprockets 37 and 39 moves in an opposite directionfrom the chain 20.

This phain 41 has teeth 42 thereon similar to teeth 21 for receivingpacks therebetween as clearly illustrated in Figure 2.-

The chain 41 is wholly disposed within the furnace. The off take passa e4 has hingedly' mounted therein a door 43 w ich ill be openby the packsas they pass off out through .this passage 4 as will be more apparent asthe description proceeds.

-A guide-strip 44 is disposed equidistant between the: chains 20 and ,41and rises from the bottom as-is clearlyillustrated in Figure 5 so thatthe-packs will be guided between the side walls of the furnace and thisstrip when moved by the chain.

The numeral 45 denotes an. electric motor geared as at 46.with a shaft'47.- This shaft 47 is geared as at-48 to the shaft 24.

Supports 49 are provided adjacent the rollin mill 9 and conveyor chains50 lead there rom through passage 4 into the off take side of thefurnace. These chains 50 are a shaft 54 that is operatively connected bya chain and sprocket mechanism 55 with the shaft 24 and the clutch 53 isactuated by alever 56 adjacent lever 28, link 57 and lever 58.

Two rows of upstanding guide rollers or k obs 59 are provided alongsidethe c ains 50.

Y The bottom 12 is provided with one or more transverse channels 60 inthe upper surface thereof at the end of the chain 20 and pusher blocks61 are movable therein actuatable by rods 62.

These rods 62 have pin and slot connections 63 with a crank 64 on ashaft 65 journaled in bearings 66 in a pit 67. The shaft 65 is rocked bya crank 68, rod 69 and eccentric 70 having a clutch connection 71 withshaft 47.

Obviously when the shaft 47 is rotating and the clutch 71 is in saideccentric will push the connecting rod 69 to cause the rock ing of shaft65 thus causing the pusher block 61 to move outwardly in the channels60, for shoving a pack which has been deposited by the chain 20 overthe. channels on to the chain 41.

Sometimes it is desirable to flip the over as the are transferred fromthe chain 20 to the c ain 41 and are provided with a special flippinmechanism which com rises flipper fin ers 73 in recesses 74 formed inthe upper sur ace of the bottom 12and rockable adjacent their ends as at75 and pivotally connected with rods 76 operable by eccentrics 77 on theshaft 47, the eccentrics 77 having a clutch connection 78 with the shaft47 so that when this clutch 78 is in the fingers will be rocked upwardlyand over to flip the pack over on to the chain 41 from the chain-20.

A bar 80 is slidable in suitable brackets 81 to the outside of thefurnace and is held in either of twopositions by a spring 82 havingkeeper notches 83 to receive a lug 84 on the bar 80.

Rigid arms 85 project from this bar 80- to that by moving the bar 80 tothe left clutch I 71 may be disengaged.

- By moving the bar 80 to the right clutch 78 will be engaged as willalso clutch 71 but the pusher mechanism will not interfere with theoperation of the flipper. That is when the flipper mechanism operatesthe usher mechanism also operates but is me ectlve acks' since the flipermechanism will lift the pack up out of the way of the blocks 61.

The arms 85 are only rigid in respect to the bar as far as horizontalswinging is concerned since as will be seen in Figure 7 these arms arepivoted as at with cranks 91 depending from the bar 80 and this bar 80may be slightly rocked by an arm 92 of angular construction whichextends in through an opening-93 in the bottom to be engaged by one ofthe teeth on the chain 20.

When a tooth en ges this arm 92 it will cause the slight roc ing of thebar 80 which will cause an outward push on the arms 85 against thetensions of springs 94 so as toplace the ends of these arms in the athsof movement of the cams 95 on the dis s 86, so that the disks will bemoved to the left of Figure 1 to disengage their respective clutches 71and 78.

It will be noted from an inspection of Figures 4 and 5 that the upperruns of chains 20, 41 and 51 move in channels so as to be flush with theupper surface of the bottom of the surface and the platform and theteeth project above the bottom of the furnace and the platform.

In usin this apparatus an operator takes the pack rom the doubler andplaces it on the support 5 thus signalling the other operator at thecontrol levers 28 and 56.

The operator adjacent the control levers then pulls the lever 28 causingthe rotation of gear 25 and chain and sprocket mechanism 40 so as tocause the movement of the chains 20 and 41 as heretofore explained sothat the pack will be drawn into the furnace.

This 0 ration is continued until a pack is deposite over the channel 60so that the pack may be pushed over or flipped over on to the chain 41,the pusher and flipper mechanism being controlled in proper timedrelation by the teeth engaging the arm 92 as heretofore explained.

When the pack moves to the output passage 4 it is deposited on the chain50 and by proper manipulation of these chains is deposited on thesupports 49, these chains 50 being controllable through clutch 53.

Thus every time the bulb 8 lights the operator throws in the clutch 27and eventually every time this clutch is thrown in a pack will beejected from the furnace and these ejected packs may be drawn to thesupports 29 to be engaged in the rolling mill 9 in the usual well knownmanner.

Sometimes it is not possible to place the rolling mill opposite theoutput passage of the furnace and by referring to Figure 11 it will beseen that I have devised a means for moving the packs transversely.

The numerals denote chains trained over sprockets on shafts 101 and 102.The sprockets are rotatable together by sleeves 103 on the shafts 101and 102 and one of these sprocket units has a clutch structure 104associated therewith and with the shaft 102.

This clutch is actuated by a lever 105 and a link 106. Chains 107 aretrained over sprockets on shaft 108 which is operatively associated withthe shaft 102 through gearing 109 and clutch 110.

The clutch 110 is operated by a. lever 111 and a link 112. The shaft 102is rotatable by an electric motor 114. 'Thus the chains 107 wouldreceive the pack from the chains 50 and lead the packs on to the chains100 or vice versa. i

In the example mentioned where the pack goes from the chains 107 to thechains 100 have provided a flipping mechanism which may be used whendesired consisting of a shaft 115 and having fingers 116 thereon. Thisshaft 115 is rocked by means of a crank 117, a link 118 and a lever 119.

It is thought that the construction, operation, utility and advantagesof the invention will now be quite apparent to those skilled in this artwithout a more detailed description thereof.

The present embodiments of the invention have been disclosed in detailmerel for the purposes of exemplification since in actual practice theyattaln the features of advantage enumerated as desirable in thestatement of the invention and the above description.

It will be apparent that changes in the details of construction, and inthe combination and arrangement of arts may be resorted to withoutdeparting rom the spirit or scope of the invention as hereinafterclaimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

1; In combination, a heatin furnace including a bottom, a pair of onless conveyor chains mounted in the bottom running alon side of eachother in opposite direction, said bottom having channels at the end ofone of said chains, said channels bein dis osed transversely of said onechain, pus er b ocks operable in the channels to push the packs fromsaid one chain over to the other chain, rods connected with said pusherblocks, a shaft, eccentric means on the shaft to 0 erate the rods,flipping fingers disposed a 'acent the pusher block, rods connected withsaid flipping fin ers, additional eccentric means on said s aft tooperate the last mentioned rods and a clutch mechanism for controllingeach of said eccentrics whereby the pusher blocks and fli ping fingersmay be operated simultaneous y or the flipping fingers may be renderedinoperative.

2. In combination, a heating furnace, a air of conveyors alongside eachother, means or transferrin packs from one conve or to the other, saidmeans embodying a 'pping mechanism and a pusher mechanism, one of saidconveyors having teeth, means actuable by said teeth for holding theflipper mechanism inoperative, said last mentioned 5 means comprising anarm engageable by the teeth, a bar rockable by the arm, a second arm, acrank on the bar pivotally engaged with the last mentioned arm, meansfor slidably mounting the bar so that when the bar 10 is rocked saidlast mentioned arm is pushed, a clutch mechanism for controlling saidpusher mechanism and said flipper mechanism, said clutch mechanismincluding a disk having a cam thereon and into the path of 1; movementof which the last mentioned arm will be pushed when the first mentionedarm is actuated by one of the teeth on one of the conve ors.

3. n combination, a heating furnace, a 2 pair of conveyors alongsideeach other, means for transferring the packs from one conveyor to theother, said means comprisin a pushing mechanism and a flipper mec anism,means for controlling the said mecha- 25 nisms, said means embodying aclutch mecha'nism, one of said conveyors having teeth, and meansactuatable by the teeth for controllinf the clutch mechanism.

11 testimony whereof I aflix m si ature. 30 JOHN W. E RY.

